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1.4ct Amethyst (Pear, 10×7mm, Light Purple) vs 1.5ct Diamond (Pear, 10×6.8mm, White)


Quick summary: When looked from above (face-up position), 1.4ct Amethyst (10×7mm, pear cut) appears 3% larger than 1.5ct Diamond (10×6.8mm, pear cut). See below how they compare side-by-side on a ring and finger.

1.4ct Amethyst (pear cut)
vs
 1.5ct Diamond (pear cut)
light purple
 
white
10×7 mm 10×6.8 mm
actual size
Actual size of 1.4ct Amethyst (pear cut, 10×7mm, Light Purple color)   Actual size of 1.5ct Diamond (pear cut, 10×6.8mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Purple 1.4ct Amethyst (pear cut, 10×7mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.5ct Diamond (pear cut, 10×6.8mm) on a right ring and finger
Your settings
Ring
 Gold
Skin tone
 Light
Ring diameter
 16.9 mm
Ring width
 3.0 mm
Finger length
 64 mm
Finger coverage
 42% vs 41%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.4ct Amethyst Pear (10×7mm, Light Purple) and 1.5ct Diamond Pear (10×6.8mm, White) as they would appear on a ring and finger. Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.

Where to buy?

For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

Face-up Size

All things being equal, Diamond will face-up smaller than Amethyst for a given carat weight, because it has higher specific gravity (3.52 vs. 2.65 - this means it's "heavier" compared to Amethyst of the same size). Face-up size also depends heavily on the proportions of the cut.

Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.


1.4 Ct Amethyst (Pear) 1.5 Ct Diamond (Pear)
10×7 mm vs 10×6.8 mm
51.1 mm²   49.64 mm²
Face-up size outline for 1.4ct Amethyst (10×7mm, pear cut)
Face-up size outline for 1.5ct Diamond (10×6.8mm, pear cut)
1.4ct Amethyst Pear (10×7mm)
1.5ct Diamond Pear (10×6.8mm)
Difference: 3% (1.46 mm²)
1.4ct Amethyst (Pear, 10×7mm) has approx. 3% more face-up area than 1.5ct Diamond (Pear, 10×6.8mm).


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